Classification
170 - Ethics
320 - Political science
196
330 - Economics
400 - Language
15
300 - Social sciences
14
340 - Law
14
100 - Philosophy & psychology
13
900 - History & geography
10
700 - The arts; fine & decorative arts
7
200 - Religion
5
160 - Logic
1
370 - Education
1
630 - Agriculture & related technologies
1
800 - Literature & rhetoric
1